Do y'all (or youz) agree that unshared mental phenomena can be considered
"culture?" Isn't "shared" one of the design features of culture?

Example: A chimp, off by herself in the woods, figures out how to make a stone
tool by flaking, and uses her newfound skill to kill, butcher, and eat a young
baboon. On the way back to the group, she is shot by poachers. Was what she
thought/did an example of "culture"? On the other hand, termiting is certainly
culture, or maybe "proto-culture" since it is not transmitted symbolically (thru
language) among chimps but it definitely is transmitted socially and not a part
of chimp genetic programming.